Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC2006G6 GTP, 2D COUPE, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 85 (ENGINE CONTROL SYSTEM - 3.8L - INTRODUCTION (2 OF 2))COMPONENT LOCATORENGINE CONTROLS CONNECTOR END VIEWS
2006 Pontiac G6 GTP, 2D Coupe, Standard
Engine Controls Connector End Views
2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Engine Controls Connector End Views
WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
Accelerator Pedal Position (APP) Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PU | 1272 | Low Reference |
| B | L-BU | 1162 | APP Sensor 2 Signal |
| C | TN | 1274 | 5-Volt Reference |
| D | BN | 1271 | Low Reference |
| E | D-BU | 1161 | APP Sensor 1 Signal |
| F | WH/BK | 1164 | 5-Volt Reference |
Camshaft Position (CMP) Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | BN/WH | 633 | CMP Sensor Signal |
| B | BK/WH | 836 | Low Reference |
| C | WH/BK | 644 | 12-Volt Reference |
Crankshaft Position (CKP) Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | L-BU/WH | 1800 | CKP Sensor 2 Signal |
| B | YE | 573 | CKP Sensor 1 Signal |
| C | BK/WH | 836 | Low Reference |
| D | WH/BK | 644 | 12-Volt Reference |
Engine Coolant Temperature (ECT) Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | BK | 2761 | Low Reference |
| B | YE | 410 | ECT Sensor Signal |
Evaporative Emission (EVAP) Canister Purge Solenoid Valve
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PK | 339 | Ignition 1 Voltage |
| B | D-GN/WH | 428 | EVAP Canister Purge Solenoid Valve Control |
Evaporative Emission (EVAP) Canister Vent Solenoid
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | OG | 2840 | Battery Positive Voltage |
| B | WH | 1310 | EVAP Canister Vent Solenoid Valve Control |
Exhaust Gas Recirculation (EGR) Valve
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | GY | 435 | EGR Solenoid Low Control |
| B | BK | 2753 | Low Reference |
| C | BN | 1456 | EGR Valve Position Signal |
| D | GY | 2702 | 5-Volt Reference |
| E | RD | 1676 | EGR Solenoid High Control |
Fuel Injector 1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PK | 639 | Ignition 1 Voltage |
| B | BK | 1744 | Fuel Injector 1 Control |
Fuel Injector 2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PK | 639 | Ignition 1 Voltage |
| B | L-GN/BK | 1745 | Fuel Injector 2 Control |
Fuel Injector 3
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PK | 639 | Ignition 1 Voltage |
| B | PK/BK | 1746 | Fuel Injector 3 Control |
Fuel Injector 4
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PK | 639 | Ignition 1 Voltage |
| B | L-BU/BK | 844 | Fuel Injector 4 Control |
Fuel Injector 5
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PK | 639 | Ignition 1 Voltage |
| B | BK/WH | 845 | Fuel Injector 5 Control |
Fuel Injector 6
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PK | 639 | Ignition 1 Voltage |
| B | YE/BK | 846 | Fuel Injector 6 Control |
Fuel Pump and Sender Assembly
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | BK | 150 | Ground |
| B | PU | 30 | Fuel Level Sensor Signal |
| C | BK/WH | 651 | Ground |
| D | GY | 120 | Fuel Pump Supply Voltage |
Fuel Tank Pressure Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | OG/BK | 469 | Low Reference |
| B | D-GN | 890 | Fuel Tank Pressure Sensor Signal |
| C | GY/BK | 416 | 5-Volt Reference |
Heated Oxygen Sensor (HO2S) 1 (W/O NU3)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | TN/WH | 3111 | HO2S Low Signal |
| B | PU/WH | 3110 | HO2S High Signal |
| C | BK/WH | 3112 | HO2S Heater Low Control Sensor 1 |
| D | PK | 839 | Ignition 1 Voltage |
Heated Oxygen Sensor (HO2S) 1 (NU3)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | TN/WH | 3111 | HO2S Low Signal |
| B | PU/WH | 3110 | HO2S High Signal |
| C | BK/WH | 3112 | HO2S Heater Low Control Sensor 1 |
| D | PK | 839 | Ignition 1 Voltage |
Heated Oxygen Sensor (HO2S) 2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | TN/WH | 3121 | HO2S Low Signal |
| B | PU | 3120 | HO2S High Signal |
| C | BK/WH | 3122 | HO2S Heater Low Control Sensor 2 |
| D | PK | 839 | Ignition 1 Voltage |
Ignition Control Module (ICM)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | WH | 423 | IC Timing Control |
| B | TN/BK | 424 | IC Timing Signal |
| C | L-BU/BK | 647 | Medium Resolution Engine Speed Signal |
| D | PU/WH | 430 | Low Resolution Engine Speed Signal |
| E | - | - | Not Used |
| F | BK | 630 | Camshaft Position Signal |
| G | YE | 573 | CKP Sensor 1 Signal |
| H | L-BU/WH | 1800 | CKP Sensor 2 Signal |
| J | BN/WH | 633 | CMP Sensor Signal |
| K | BK/WH | 51 | Ground |
| L | RD/BK | 453 | Low Reference |
| M | BK/WH | 836 | Low Reference |
| N | WH/BK | 644 | 12-Volt Reference |
| P | PK | 239 | Ignition 1 Voltage |
Knock Sensor (KS) 1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | D-BU | 496 | Knock Sensor 1 Signal |
Knock Sensor (KS) 2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | L-BU | 1876 | Knock Sensor 2 Signal |
Manifold Absolute Pressure (MAP) Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | OG/BK | 469 | Low Reference |
| B | L-GN | 432 | MAP Sensor Signal |
| C | GY | 2704 | 5-Volt Reference |
Mass Airflow (MAF)/Intake Air Temperature (IAT) Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | YE | 492 | MAF Sensor Signal |
| B | PK | 339 | Ignition 1 Voltage |
| C | BK/WH | 451 | Ground |
| D | TN | 472 | IAT Sensor Signal |
| E | BK | 2760 | Low Reference |
Secondary Air Injection (AIR) Control Solenoid Valve/Pressure Sensor, Bank 2 (NU3)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | BK | 476 | Low Reference |
| 2 | WH | 5268 | Air Pressure Sensor Signal |
| 3 | GY | 474 | 5-Volt Reference |
| 4 | BK/WH | 451 | Ground |
| 5 | - | - | Not Used |
| 6 | PU | 421 | Air Injection Reaction Solenoid Relay Coil Control |
Secondary Air Injection (AIR) Pump (NU3)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | RD | 78 | Air Pump Supply Voltage |
| B | BK | 1050 | Ground |
Secondary Air Injection (AIR) Pump Relay (NU3)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 30 | OG | 1540 | Battery Positive Voltage |
| 85 | PK | 339 | Ignition 1 Voltage |
| 86 | BN/WH | 436 | Air Pump Relay Control |
| 87 | RD | 78 | Air Pump Supply Voltage |
Secondary Air Injection (AIR) Solenoid Relay (NU3)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 30 | PK | 339 | Ignition 1 Voltage |
| 85 | PK | 339 | Ignition 1 Voltage |
| 86 | PK/BK | 429 | Air Injection Reaction Solenoid Relay Coil Control |
| 87 | PU | 421 | Air Injection Reaction Solenoid Control |
Throttle Actuator Control (TAC) Module
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | TN | 1274 | 5-Volt Reference |
| 2 | PU | 1272 | Low Reference |
| 3 | L-BU | 1162 | APP Sensor 2 Signal |
| 4 | D-GN | 389 | Vehicle Speed Signal |
| 5 | - | - | Not Used |
| 6 | WH | 17 | Stop Lamp Switch Signal |
| 7 | OG/BK | 1061 | UART Serial Data Secondary |
| 8 | TN/WH | 551 | Ground |
| 9-10 | - | - | Not Used |
| 11 | D-BU | 1161 | APP Sensor 1 Signal |
| 12 | BN | 1271 | Low Reference |
| 13 | WH/BK | 1164 | 5-Volt Reference |
| 14-15 | - | - | Not Used |
| 16 | TN | 800 | UART Serial Data Primary |
| 17 | TN/WH | 551 | Ground |
| 18 | PK | 39 | Ignition 1 Voltage |
| 19-20 | - | - | Not Used |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.